補(bǔ)充纈氨酸可改善泌乳母豬的免疫和內(nèi)分泌功能

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　　Valine supplementation improves immune and endocrine function of lactating sows
　　補(bǔ)充纈氨酸可改善泌乳母豬的免疫和內(nèi)分泌功能
　　作者:Yi, P., Yi, C., Shao-Hui, F., Li-Xiang, C.和Jian-Hua, H..
　　論文題目: Dietary valine supplementation improves immune and endocrine function of lactating sows.
　　論文發(fā)表在第13屆國(guó)際氨基酸，多肽和蛋白質(zhì)大會(huì)論文集.575. DOI 10.1007/s00726-013-1540-y
　　

       在以前的研究中，日糧補(bǔ)充纈氨酸可提高母豬生產(chǎn)性能，它可能與免疫系統(tǒng)和內(nèi)分泌功能的改善有關(guān)系。32頭健康母豬（長(zhǎng)白x約克夏，胎次和身體狀況差不多）被分配到四個(gè)日糧組之中的一組：基礎(chǔ)日糧（0.93％賴氨酸，纈氨酸0.84％）或者基礎(chǔ)日糧中分別添加0.10％，0.25％和0.40％的纈氨酸，從妊娠107天到哺乳期第21天添加。在哺乳期第10和18天的收集血液樣品，在哺乳期第1和10天采集奶水。
　　結(jié)果表明，日糧補(bǔ)充纈氨酸明顯地增加了哺乳期第10和18天的血清白蛋白濃度（P <0.05），第18天的血清免疫球蛋白M，免疫球蛋白G和催乳素濃度增加了（P <0.05）。補(bǔ)充纈氨酸使得哺乳期第14天奶水中的胰島素濃度也顯著增加（P<0.05），并增加了哺乳期第1和14天奶水中生長(zhǎng)激素的濃度。日糧補(bǔ)充纈氨酸易于增加乳白蛋白和IgM濃度（P> 0.05），這往往會(huì)降低乳豬的腹瀉率（P>0.05）。
　　因此，有人建議，日糧補(bǔ)充纈氨酸，母豬獲得更好的性能可能主要與母豬免疫功能改善以及奶源性生長(zhǎng)因子濃度提高有關(guān)。
　　英文來源：pig333.com
　　譯者：IRIS


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英文原文：　　In previous study, dietary valine supplementation improved sow performance, it may be related to immune and endocrinology function improvement. Thirty-two healthy sows (Landrace x Yorkshire, similar parity, and body condition) were assigned to fed one of the four diets: basal diet (0.93 % Lysine, 0.84 % Valine) or basal diet supplemented with 0.10 %, 0.25 %, and 0.40 % valine respectively from 107 days of gestation to 21 days of lactation. Blood samples were collected at 10 and 18 days of lactation, milk samples were collected at 1 and 10 days of lactation.

　　The results showed that dietary valine supplementation significantly increased serum albumin concentrations at 10 and 18 days of lactation (P<0.05), and increased serum Immunoglobulin M, Immunoglobulin G and Prolactin concentrations at 18 days (P<0.05) of lactation. Valine supplementation also significantly increased milk insulin concentrations at 14 days of lactation (P<0.05), and increased milk growth hormone concentrations at 1 and 14 days of lactation. Dietary valine supplementation tended to increase milk ALB and IgM concentrations (P>0.05) and tend to reduce diarrhoea rate in suckling pigs (P>0.05).

　　Therefore, it was suggested that better performance of sows fed valine supplemented diet could be mainly related to improved sows’ immune function and increased milk-borne growth factors concentrations.